The installation has to be done as the user "root" - the errors might be from running the installer as the regular user Knoppix.

By the way, now it's known as knoppix-installer - but knx2hd still works because it's set up as a kind of alias for knoppix-inistaller.

To run one command as root, you start it with "sudo" - so try this: $sudo knoppix-installer. Let us know if you still have problems!

-- Ed